ES2986587T3 - Sistema de bobina de gradiente - Google Patents
Sistema de bobina de gradiente Download PDFInfo
- Publication number
- ES2986587T3 ES2986587T3 ES19896161T ES19896161T ES2986587T3 ES 2986587 T3 ES2986587 T3 ES 2986587T3 ES 19896161 T ES19896161 T ES 19896161T ES 19896161 T ES19896161 T ES 19896161T ES 2986587 T3 ES2986587 T3 ES 2986587T3
- Authority
- ES
- Spain
- Prior art keywords
- gradient
- coil
- primary
- frustoconical
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002059 diagnostic imaging Methods 0.000 claims abstract description 4
- 230000005291 magnetic effect Effects 0.000 claims description 34
- 230000004323 axial length Effects 0.000 claims description 2
- 238000002595 magnetic resonance imaging Methods 0.000 abstract description 22
- 238000003384 imaging method Methods 0.000 description 18
- 239000010410 layer Substances 0.000 description 14
- 238000005481 NMR spectroscopy Methods 0.000 description 4
- 239000003302 ferromagnetic material Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010009244 Claustrophobia Diseases 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 101100330193 Homo sapiens CYREN gene Proteins 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000002597 diffusion-weighted imaging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007383 nerve stimulation Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 210000000578 peripheral nerve Anatomy 0.000 description 1
- 208000019899 phobic disease Diseases 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000012772 sequence design Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/387—Compensation of inhomogeneities
- G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/42—Screening
- G01R33/421—Screening of main or gradient magnetic field
- G01R33/4215—Screening of main or gradient magnetic field of the gradient magnetic field, e.g. using passive or active shielding of the gradient magnetic field
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0033—Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/387—Compensation of inhomogeneities
- G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2018904742A AU2018904742A0 (en) | 2018-12-13 | Gradient coil system | |
| PCT/AU2019/051276 WO2020118352A1 (en) | 2018-12-13 | 2019-11-20 | Gradient coil system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2986587T3 true ES2986587T3 (es) | 2024-11-12 |
Family
ID=71075264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES19896161T Active ES2986587T3 (es) | 2018-12-13 | 2019-11-20 | Sistema de bobina de gradiente |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US11422214B2 (de) |
| EP (1) | EP3894879B1 (de) |
| JP (1) | JP7362147B2 (de) |
| CN (1) | CN113544525B (de) |
| AU (1) | AU2019396124B2 (de) |
| ES (1) | ES2986587T3 (de) |
| WO (1) | WO2020118352A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111417436B (zh) * | 2019-02-02 | 2022-07-15 | 上海联影医疗科技股份有限公司 | 放射治疗系统和方法 |
| CN114519289A (zh) * | 2022-02-22 | 2022-05-20 | 浙江大学 | 用于磁共振成像的锥形阵列梯度线圈及其设计方法和应用 |
| EP4328610A1 (de) * | 2022-08-25 | 2024-02-28 | Siemens Healthineers AG | Gradientenspuleneinheit für interventionelle mr-bildgebung |
| CN115718275B (zh) * | 2022-11-28 | 2025-08-01 | 华南理工大学 | 一种偏中心的圆锥形头部梯度线圈及其设计方法 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4733189A (en) * | 1986-06-03 | 1988-03-22 | Massachusetts Institute Of Technology | Magnetic resonance imaging systems |
| US5307039A (en) * | 1992-09-08 | 1994-04-26 | General Electric Company | Frustoconical magnet for magnetic resonance imaging |
| US5485087A (en) * | 1994-08-05 | 1996-01-16 | Picker International, Inc. | Magnetic resonance insert gradient coils with parabolic returns for improved access |
| US5497089A (en) * | 1994-03-15 | 1996-03-05 | Picker International, Inc. | Wide aperture gradient set |
| DE4422782C2 (de) * | 1994-06-29 | 1998-02-19 | Siemens Ag | Aktiv geschirmte transversale Gradientenspule für Kernspintomographiegeräte |
| US5416415A (en) * | 1994-08-05 | 1995-05-16 | General Electric Company | Over-shoulder MRI magnet for human brain imaging |
| US5550472A (en) * | 1995-04-13 | 1996-08-27 | Picker International, Inc. | Combined radio frequency coil with integral magnetic field shim set |
| US6078177A (en) * | 1998-01-05 | 2000-06-20 | Picker International, Inc. | Flared gradient coil set with a finite shield current |
| DE10004765A1 (de) * | 2000-02-03 | 2001-08-09 | Philips Corp Intellectual Pty | MR-Gerät mit einer Gradientenspulen-Anordnung |
| WO2004046745A1 (en) * | 2002-11-20 | 2004-06-03 | Koninklijke Philips Electronics N.V. | Self-shielded gradient field coil for magnetic resonance imaging |
| DE102004002919B4 (de) * | 2004-01-20 | 2006-01-12 | Siemens Ag | Gradientenspulensystem und Verfahren zum Herstellen des Gradientenspulensystems |
| DE102004005278B4 (de) | 2004-02-03 | 2008-09-11 | Siemens Ag | Verfahren zur Herstellung transversaler nichtzylindrischer Gradientenspulen mit zumindest einem divergenten Abschnitt |
| US7498810B2 (en) | 2004-09-11 | 2009-03-03 | General Electric Company | Systems, methods and apparatus for specialized magnetic resonance imaging with dual-access conical bore |
| JP4897493B2 (ja) * | 2004-11-29 | 2012-03-14 | 株式会社日立メディコ | 磁気共鳴イメージング装置 |
| GB2468852A (en) * | 2009-03-23 | 2010-09-29 | Siemens Magnet Technology Ltd | Arrangements and Method for Shimming a Magnetic Field |
| KR101682198B1 (ko) | 2013-08-13 | 2016-12-02 | 삼성전자주식회사 | 자기공명영상장치 및 그 제조방법 |
| JP6366940B2 (ja) * | 2014-01-09 | 2018-08-01 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置 |
| WO2016025996A1 (en) * | 2014-08-18 | 2016-02-25 | Magnetica Limited | Magnet for head and extremity imaging |
| CN107923957B (zh) * | 2015-04-27 | 2019-11-29 | 圣纳普医疗(巴巴多斯)公司 | 用于高性能电磁铁磁共振成像的自适应电磁铁 |
| CN109642932B (zh) * | 2016-08-15 | 2021-10-15 | 皇家飞利浦有限公司 | 用于磁共振检查系统的主动屏蔽梯度线圈组件 |
| US11237234B2 (en) * | 2017-03-24 | 2022-02-01 | Victoria Link Limited | MRI magnet and apparatus |
-
2019
- 2019-11-20 AU AU2019396124A patent/AU2019396124B2/en active Active
- 2019-11-20 CN CN201980082373.9A patent/CN113544525B/zh active Active
- 2019-11-20 EP EP19896161.7A patent/EP3894879B1/de active Active
- 2019-11-20 WO PCT/AU2019/051276 patent/WO2020118352A1/en not_active Ceased
- 2019-11-20 JP JP2021533561A patent/JP7362147B2/ja active Active
- 2019-11-20 ES ES19896161T patent/ES2986587T3/es active Active
- 2019-11-20 US US17/294,487 patent/US11422214B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022512410A (ja) | 2022-02-03 |
| EP3894879C0 (de) | 2024-05-29 |
| AU2019396124B2 (en) | 2021-06-17 |
| AU2019396124A1 (en) | 2021-05-27 |
| JP7362147B2 (ja) | 2023-10-17 |
| CN113544525A (zh) | 2021-10-22 |
| CN113544525B (zh) | 2024-10-25 |
| EP3894879B1 (de) | 2024-05-29 |
| EP3894879A1 (de) | 2021-10-20 |
| US20220011387A1 (en) | 2022-01-13 |
| WO2020118352A1 (en) | 2020-06-18 |
| US11422214B2 (en) | 2022-08-23 |
| EP3894879A4 (de) | 2022-01-26 |
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